ADV7611 TMDS PLL

Using ADV7611 in our closed system, TMDS PLL may not be able to lockwhen a random TMDS frequency signal from tens MHz to hundreds MHz is inputfor a few seconds then normal signal is input into ADV7611.

The case is not happened in all devices and it is happened in one per 13 devices at present.Is there information to solve it or to improve it?

Yes, we can't lock to a normal signal after inputting a random signal.And we don't do a hardware reset after a random signal.We think that one solution is a hardware reset after detecting TMDS PLL unlockusing TMDSPLL_LCK_A_RAW（IO 0x6A[6]） etc. to solve it.Is there another solution to improve TMDS PLL lock performance setting some registers?

There aren't any registers I can think of that would change that, that's a pretty unusual problem. You shouldn't normally have to do a reset before a new input but it sounds like your project is not typical so maybe that is safest.